Captain William Proctor of the State Police, testifying as a ballistics expert, claimed that the 12-gauge Winchester shell Dr. Murphy had found in the gutter and the Winchester shells found in Vanzetti’s pocket were identical, except that one was empty and the others loaded. Vahey objected that the shell in the gutter might have been dropped there by any passing hunter and that there was no connection between it and the shells found on Vanzetti four months later. Judge Thayer overruled Vahey and admitted the shells as evidence for the jury to pass on. Sacco’s name was mentioned only once during the trial, when Austin Cole, the streetcar conductor, testified that he had seen Sacco and Vanzetti on the Brockton car not only the night of their arrest but also on the fourteenth or fifteenth of April, when the two men had got on at the same Sunset Avenue stop at the same time and had got off at Brockton. On that first night, according to Cole, Sacco had paid the fares with a quarter and a nickel. “I changed the quarter,” Cole continued, “and I said to him ‘To Brockton?’ He says ‘Yes.’ I said, ‘It will be thirty cents.’ ‘I know it,’ he says and he handed me a nickel and the other hand was thrust into the pocket, and he asked for two transfers. When I was talking with him he smiled and I noticed the gold tooth on Sacco.” Vahey wanted to know how the conductor could remember a particular day of no special significance among many days he could not remember at all. Cole maintained that he had worked Wednesday and Thursday, the fourteenth and fifteenth, and not again until the following Tuesday. He remembered those dates particularly because he associated them with Patriot’s Day, the nineteenth. Katzmann’s efforts to link Boda with the holdup attempt were fumbling. One witness, Napoleon Ensher, who lived a quarter of a mile from Puffer’s Place, said that early in the spring he had seen Boda drive past in a Buick and that Boda had waved to him. At the Dedham trial a year later Ensher’s evidence was ruled out as unsubstantiated. Another witness, Richard Casey, had watched the bandit car stop near his house at the corner of Broad and Main Streets. He described the driver as a man with a short mustache and prominent nose, wearing either a velour or a black soft hat. All that Casey could remember of the man next to the driver was that he wore a brown cap. When Stewart showed him half a dozen caps, Casey picked out the one that the chief had taken from Vanzetti’s room. District Attorney Katzmann took three and a half days to present his case. On Monday, June 28, just before the noon recess, he announced that the Commonwealth rested.